You can paint the motor, but painting the blades will surely make it wobble and that can be pretty severe. C fan blades are highly balanced. There is no way you'd be able to get the amount of paint used for each fan blade to be the same.

You can paint the motor, but painting the blades will surely make it wobble and that can be pretty severe. C fan blades are highly balanced. There is no way you'd be able to get the amount of paint used for each fan blade to be the same.

That is what balancing kits are for. :D

My concern would be coating the motor and cooling screens, blocking cooling air from the motor. As long as it is only the housing and/or blade parts, painting should be fine. I would recommend using aerosol paint for ease of use and thin, even coating.

I agree with Spruce. You can paint the fan without too much trouble. Depending on the quality of the fan many of them aren't that balanced anyway.

I would recommend spray painting the fan and blades. It will give you a nice even finish and you'll have the greatest chance at keeping the amount of paint on each blade the same. The drawback to spray paint is that you'll have a limited color selection.